Peters



fitte,

gamut `JAMES OHLEN, OF COLUMBUS, OHIO.

nitrh Letters Patent ivo. 81,102, dated August 18, 1868.

IMPROVEM-ET IN ATTAGHING HANDLES TO SAWS.

TO ALL WHOM IT MAY CONOER: I

Be it known that I, JAMES OHLEN, of Columbus, in the county of Franklin, and State of Ohio, have invented a new and'improved Handle-Attachment for Saws; and I do hereby declare' that Vthe following is a full, clear, and exactde'scription thereof, reference beinghad to the accompanying drawings, making part of this specifi` cation, in which-- Figure 1 is a section of a saw-blade having my improved handle-attachment applied to it. Figure 2 is a top view of the same. i Iligure 3 is an edge view of the same. Figures 4 and 5 are perspective views of the washer and handie-attachment.v Similar letters of reference indicate'corresponding parts in the several figures. This invention relates to a new and useful improvement on the construction of removable handle-.attachments .or tangs, which are adapted for large cross-cut or log-saws, whereby the socket which receives the handle can be secured to the saw in a more substantial manner than hitherto, and removed from the saw-blade at pleasure.

The nature' of my invention consists in constructingthe socket for ,receiving the handle, the jaws for embracing the saw-blade, and the bolt by which the whole are rigidly secured to this blade, et' one piece, and employing a. slotted washer and thumb-nut for securing said piece rigidly in place upon the saw-blade, whereby V the handle-socket can be arranged so' near the middle of the width of the blade as to bring the line of draught in a more desirable position for sawing, and in heavy sawing, one end-of the bolt can be fitted i-nto recesses formed inthe back edge of the blade, as will be hereinafter described.

To enable others skilled in Athe art to understand my invention, I will describe its construction and operation.

. In the accompanying drawings, igsl 1, 2, and 3, A represents one end of the blade of a cross-c ut handsaw, to which end I apply a-tang or attachment for the handle of the saw, so that while this handle can be rigidly secured to said blade, it can be readily detached therefrom at pleasure.V

i B represents the soketsor ferrule for receiving the handle O.

B1 B1 represent two 'flat jaws, with a narrow space between them for receiving and embracing the end of the saw-blade A, and i l v B2 represents a longitudinally and centrally-slotted bar or bolt, which also embraces -the saw-blade transversely. These parts are Veast or otherwise made in one piece withthe' socket B, and its embracing-jaws, B1 Bl, applied to the split or -slotted bolt, B2, at an intermediate point between its ends, as shown in figs. 1, 3, and 4, for the purpose of having the line of draught at near the centre of the saw-blade, and also for the purpose of ai'ording facility for letting the head a of the bolt BZ into a notch, b, formed in the upper edge ofthe blade, as shown in iig. 1, which latter feature will etfectually prevent the handle-attachment from slipping or being` strained out of proper position while performing heavy work. v

The lower end of the slotted bolt lis threaded for receiving upon it a binding-nut, D, between which and the bottom edge ofthe saw-blade is 'an oblong washer, E, having -a slot made in its upper face for receiving the lower edge of the blade A, when the parts are all drawn tightly in place by setting up the nut I).

I am aware that it is not new to constructa socket for the handle with a grooved head-piece upon it for receiving the upper right-angular corner of a saw-blade, and to employ, in conjunction therewith, a separated slotted bolt, with a binding-screw nut upon one end, and therefore I do not claim broadly these devices. This arrangement of the parts requires that the socket should be applied at or very near the upper right-angular corner of the blade, which is too high for convenience, and for applying pow-er to thebest advantage in sawing p heavy work, and besides this, the fastening cannot bevmade as substantial and as rigid as it can by the mode described.

`The two flanges or jaws Bl, which are formed on the socket B, and which have formed'upon them the slotted bolt B2, receive and embrace the saw-blade, and admit ofthe insertion ofthe united or solid head ofthe elloz 2 bolt into a. notch formed in` the longitudinal edge of the blade, as shown and described. The washer E aords a. firm abutment-against the lowerl edge of tbe saw-blade, and embraces this edge, so as to aiord a rigid ettacbf ment at this point.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The construction of the socket B, jaws B1, and slotted or split screw-bolt B2 in one piece, substantially as shown and described.

2. The slotted washer in combination with the nut D, bolt B, jaws B1', and socket B, substantially as described.

. JAMES OHLEN.

Witnesses:

y TgoMAs E. TAYLOR,

SA'ML GULIcK. 

